A249184 A249183 seen as binary numbers.

1, 7, 27, 119, 427, 1799, 6939, 30583, 109227, 458759, 1769499, 7798903, 27984299, 117901063, 454761243, 2004318071, 7158278827, 30064771079, 115964117019, 511101108343, 1833951035819, 7726646167303, 29802778073883, 131352984844151, 469126392949419

Offset: 0

Author

Reinhard Zumkeller, Nov 14 2014

Keywords

• nonn

Comments

Appears to be basically the same as A048711. - R. J. Mathar, Nov 16 2014

Links

• Reinhard Zumkeller, Table of n, a(n) for n = 0..1000

Crossrefs

Cf. A249183 (binary), A249133, A007088, A001317, A000120, A023416, A105321, A249304.

Programs

Haskell

a249184 = foldr (\b v -> 2 * v + b) 0 . a249133_row

Mathematica

a[n_] := FromDigits[Mod[Riffle[Binomial[n, Range[0, n]], Binomial[n - 1, Range[0, n - 1]]], 2], 2]; Array[a, 25, 0] (* Amiram Eldar, Jul 28 2023 *)

Formula

a(n) = Sum_{k=0..2*n} (A249133(n,k)*2^k).

A007088(a(n)) = A249183(n).

A000120(a(n)) = A105321(n).

A023416(a(n)) = A249304(n).